(CNN) - The familiar 2014 narrative - tea party challenger takes on establishment GOP incumbent - was turned on its head Tuesday as Michigan voters headed to the polls in the state's Republican primary.

Challenger Brian Ellis, a wealthy businessman who has support from the U.S. Chamber of Commerce, hoping to unseat two-term Rep. Justin Amash, came up short.

Amash will beat Ellis in the GOP contest for the state's 3rd Congressional District, CNN projects.

For the first time, a majority of Americans said they disapproved of their representative and thought they were part of the problem in Washington, according to a Washington Post-ABC poll out Tuesday. The poll found that 51% of Americans disapprove of the way their own member of Congress is handling his or her job, while 41% approve.

Washington (CNN) - Chris McDaniel on Monday officially contested results showing he lost a Republican primary to Mississippi Sen. Thad Cochran, revealing what his camp alleges is evidence of voter fraud and other irregularities.

"They asked us to put up or shut up. Here we are. Here we are with the evidence," McDaniel said at a news conference in Jackson.

Washington (CNN) – Under fire for plagiarism, Democratic Sen. John Walsh of Montana is now feeling the pressure at home.

Newspapers from the two largest cities in Montana are calling for Walsh to end his Senate campaign in light of charges that he plagiarized part of a paper needed to complete his master's degree at the Army War College.

(CNN) – A circuit court judge on Friday ordered Florida's state legislature to redraw congressional district lines before the state's primary in two weeks, suggesting he would be prepared to delay the November 4 general elections in the newly drawn districts.

Judge Terry Lewis had earlier ruled the map, which consists of 27 congressional districts, to be unconstitutional.

Washington (CNN) - Eric Cantor will be leaving Congress earlier than expected - the former House majority leader whose primary defeat less than two months ago rocked the Republican Party says he'll resign effective August 18.

Cantor had said after his primary loss that he would step down as the No. 2 Republican in the House on July 31. He announced that he was leaving Congress in an interview with the Richmond Times-Dispatch, the main newspaper in his Virginia district on Thursday.

Washington (CNN) - On what was supposed to be the last day before summer recess, dysfunction reigned in Congress.

House Republican leaders called off a vote Thursday on their $659 million emergency response to the border influx from Central America overwhelming immigration resources, unable to agree among themselves about what to do.